This reply
Maggie Ni mark this message invalid request
originally written by Maggie Ni
我買到一款奈米級5層防護,我不懂的是它只有通過CNS15980 A級
的防霾口罩,真的不能擋這波的武漢肺炎嗎??

The content above by Cofacts message reporting chatbot and crowd-sourced fact-checking community is licensed under Creative Commons Attribution-ShareAlike 4.0 (CC BY-SA 4.0), the community name and the provenance link for each item shall be fully cited for further reproduction or redistribution.